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It sounds like this situation could be resolvable but I understand your frustration. He has to want to resolve this too. If not then you get the reaction you are getting now. If you meet with this kind of resistance then he may not be open to changing his behavior. If he is not then nothing will change. You can explain the reason why family is important and offer a solution that he can live with. If his position is all about him then compromise is difficult. He has to want to merge you and everyone else. He may not share your desire for family. That is why you are getting this resistance.
I would offer to access marriage counseling before I end it but that is up to you. You could share your position in front of a neutral party and seek compromise that way. In the end if you think nothing is going to change then you are free to separate. He may come to his senses after you actually separate.
If this is helpful press accept